Generated by SassMeister.com.

SassMeister-input-HTML.html

<div class="box-list download-box">
				<div class="box-title">downloads</div>				
				<ul>
					<li><a href="#">Guia de Aprendizagem Rápida Action.NET<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Palestra para Usuários Action.NET<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Agrupamentos pontos ONS 2.7<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Protocolo DNP 3.0 Mestre<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Palestra SPIN CTEEP SE Centro<br><span class="file-size">(450kb)</span></a></li>
				</ul>
			</div>

SassMeister-input.scss

// ----
// Sass (v3.3.8)
// Compass (v1.0.0.alpha.19)
// ----

@mixin box-list($item-height: 35px, $item-spacing: 0, $title-bgc: #c4c4c4, $title-color: black, $item-bgc: #e2e2e2, $item-color: black, $case: none){
	.box-title{
		background-color: $title-bgc;
		height: $item-height;
		padding: 10px;
		color: white;	
		text-transform: $case;
	}

	ul{
		list-style: none;
		margin: 0;
		padding: 0;
		
		li a{
			color: $item-color;
			display: block;
			min-height: $item-height;
			padding: 10px;
			background-color: $item-bgc;
			margin-bottom: $item-spacing;
			&:hover{
				background-color: #0384ad;
				color: white;
			}
		}
	}

	
}

.download-box{
	width: 370px;
	float: right;
	margin: 0 0 20px 20px;
	overflow: hidden;
	@include box-list(35px,2px,blue,white,#b3e5fa,black,uppercase);
}

SassMeister-output.css

.download-box {
  width: 370px;
  float: right;
  margin: 0 0 20px 20px;
  overflow: hidden;
}
.download-box .box-title {
  background-color: blue;
  height: 35px;
  padding: 10px;
  color: white;
  text-transform: uppercase;
}
.download-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.download-box ul li a {
  color: black;
  display: block;
  min-height: 35px;
  padding: 10px;
  background-color: #b3e5fa;
  margin-bottom: 2px;
}
.download-box ul li a:hover {
  background-color: #0384ad;
  color: white;
}

SassMeister-rendered.html

<div class="box-list download-box">
				<div class="box-title">downloads</div>				
				<ul>
					<li><a href="#">Guia de Aprendizagem Rápida Action.NET<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Palestra para Usuários Action.NET<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Agrupamentos pontos ONS 2.7<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Protocolo DNP 3.0 Mestre<br><span class="file-size">(450kb)</span></a></li>
					<li><a href="#">Palestra SPIN CTEEP SE Centro<br><span class="file-size">(450kb)</span></a></li>
				</ul>
			</div>